<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <link rel="stylesheet" href="bootstrap.min.css"/>
    <script src="jquery-3.1.0.min.js"></script>
    <script src="isotope/isotope.pkgd.min.js"></script>
    <script src="bootstrap.min.js"></script>
</head>
<style>
    * { box-sizing: border-box; }

    body {
        font-family: sans-serif;
    }

    /* ---- button ---- */

    .button {
        display: inline-block;
        padding: 0.5em 1.0em;
        background: #EEE;
        border: none;
        border-radius: 7px;
        background-image: linear-gradient( to bottom, hsla(0, 0%, 0%, 0), hsla(0, 0%, 0%, 0.2) );
        color: #222;
        font-family: sans-serif;
        font-size: 16px;
        text-shadow: 0 1px white;
        cursor: pointer;
    }

    .button:hover {
        background-color: #8CF;
        text-shadow: 0 1px hsla(0, 0%, 100%, 0.5);
        color: #222;
    }

    .button:active,
    .button.is-checked {
        background-color: #28F;
    }

    .button.is-checked {
        color: white;
        text-shadow: 0 -1px hsla(0, 0%, 0%, 0.8);
    }

    .button:active {
        box-shadow: inset 0 1px 10px hsla(0, 0%, 0%, 0.8);
    }

    /* ---- button-group ---- */

    .button-group {
        margin-bottom: 20px;
    }

    .button-group:after {
        content: '';
        display: block;
        clear: both;
    }

    .button-group .button {
        float: left;
        border-radius: 0;
        margin-left: 0;
        margin-right: 1px;
    }

    .button-group .button:first-child { border-radius: 0.5em 0 0 0.5em; }
    .button-group .button:last-child { border-radius: 0 0.5em 0.5em 0; }

    /* ---- isotope ---- */

    .grid {
        border: 1px solid #333;
    }

    /* clear fix */
    .grid:after {
        content: '';
        display: block;
        clear: both;
    }

    /* ---- .element-item ---- */

    .element-item {
        position: relative;
        float: left;
        width: 100px;
        height: 100px;
        margin: 5px;
        padding: 10px;
        background: #888;
        color: #262524;
    }

    .element-item > * {
        margin: 0;
        padding: 0;
    }

    .element-item .name {
        position: absolute;

        left: 10px;
        top: 60px;
        text-transform: none;
        letter-spacing: 0;
        font-size: 12px;
        font-weight: normal;
    }

    .element-item .symbol {
        position: absolute;
        left: 10px;
        top: 0px;
        font-size: 42px;
        font-weight: bold;
        color: white;
    }

    .element-item .number {
        position: absolute;
        right: 8px;
        top: 5px;
    }

    .element-item .weight {
        position: absolute;
        left: 10px;
        top: 76px;
        font-size: 12px;
    }

    .element-item.alkali          { background: #F00; background: hsl(   0, 100%, 50%); }
    .element-item.alkaline-earth  { background: #F80; background: hsl(  36, 100%, 50%); }
    .element-item.lanthanoid      { background: #FF0; background: hsl(  72, 100%, 50%); }
    .element-item.actinoid        { background: #0F0; background: hsl( 108, 100%, 50%); }
    .element-item.transition      { background: #0F8; background: hsl( 144, 100%, 50%); }
    .element-item.post-transition { background: #0FF; background: hsl( 180, 100%, 50%); }
    .element-item.metalloid       { background: #08F; background: hsl( 216, 100%, 50%); }
    .element-item.diatomic        { background: #00F; background: hsl( 252, 100%, 50%); }
    .element-item.halogen         { background: #F0F; background: hsl( 288, 100%, 50%); }
    .element-item.noble-gas       { background: #F08; background: hsl( 324, 100%, 50%); }
</style>
<body>
<h1>Isotope - filtering &amp; sorting</h1>
<h2>Filter</h2>
<div id="filters" class="button-group">  <button class="button is-checked" data-filter="*">show all</button>
    <button class="button" data-filter=".metal">metal</button>
    <button class="button" data-filter=".transition">transition</button>
    <button class="button" data-filter=".alkali, .alkaline-earth">alkali and alkaline-earth</button>
    <button class="button" data-filter=":not(.transition)">not transition</button>
    <button class="button" data-filter=".metal:not(.transition)">metal but not transition</button>
    <button class="button" data-filter="numberGreaterThan50">number > 50</button>
    <button class="button" data-filter="ium">name ends with &ndash;ium</button>
</div>

<h2>Sort</h2>
<div id="sorts" class="button-group">  <button class="button is-checked" data-sort-by="original-order">original order</button>
    <button class="button" data-sort-by="name">name</button>
    <button class="button" data-sort-by="symbol">symbol</button>
    <button class="button" data-sort-by="number">number</button>
    <button class="button" data-sort-by="weight">weight</button>
    <button class="button" data-sort-by="category">category</button>
</div>

<div class="grid">
    <div class="element-item transition metal " data-category="transition">
        <h3 class="name">Mercury</h3>
        <p class="symbol">Hg</p>
        <p class="number">80</p>
        <p class="weight">200.59</p>
    </div>
    <div class="element-item metalloid " data-category="metalloid">
        <h3 class="name">Tellurium</h3>
        <p class="symbol">Te</p>
        <p class="number">52</p>
        <p class="weight">127.6</p>
    </div>
    <div class="element-item post-transition metal " data-category="post-transition">
        <h3 class="name">Bismuth</h3>
        <p class="symbol">Bi</p>
        <p class="number">83</p>
        <p class="weight">208.980</p>
    </div>
    <div class="element-item post-transition metal " data-category="post-transition">
        <h3 class="name">Lead</h3>
        <p class="symbol">Pb</p>
        <p class="number">82</p>
        <p class="weight">207.2</p>
    </div>
    <div class="element-item transition metal " data-category="transition">
        <h3 class="name">Gold</h3>
        <p class="symbol">Au</p>
        <p class="number">79</p>
        <p class="weight">196.967</p>
    </div>
    <div class="element-item alkali metal " data-category="alkali">
        <h3 class="name">Potassium</h3>
        <p class="symbol">K</p>
        <p class="number">19</p>
        <p class="weight">39.0983</p>
    </div>
    <div class="element-item alkali metal " data-category="alkali">
        <h3 class="name">Sodium</h3>
        <p class="symbol">Na</p>
        <p class="number">11</p>
        <p class="weight">22.99</p>
    </div>
    <div class="element-item transition metal " data-category="transition">
        <h3 class="name">Cadmium</h3>
        <p class="symbol">Cd</p>
        <p class="number">48</p>
        <p class="weight">112.411</p>
    </div>
    <div class="element-item alkaline-earth metal " data-category="alkaline-earth">
        <h3 class="name">Calcium</h3>
        <p class="symbol">Ca</p>
        <p class="number">20</p>
        <p class="weight">40.078</p>
    </div>
    <div class="element-item transition metal " data-category="transition">
        <h3 class="name">Rhenium</h3>
        <p class="symbol">Re</p>
        <p class="number">75</p>
        <p class="weight">186.207</p>
    </div>
    <div class="element-item post-transition metal " data-category="post-transition">
        <h3 class="name">Thallium</h3>
        <p class="symbol">Tl</p>
        <p class="number">81</p>
        <p class="weight">204.383</p>
    </div>
    <div class="element-item metalloid " data-category="metalloid">
        <h3 class="name">Antimony</h3>
        <p class="symbol">Sb</p>
        <p class="number">51</p>
        <p class="weight">121.76</p>
    </div>
    <div class="element-item transition metal " data-category="transition">
        <h3 class="name">Cobalt</h3>
        <p class="symbol">Co</p>
        <p class="number">27</p>
        <p class="weight">58.933</p>
    </div>
    <div class="element-item lanthanoid metal inner-transition " data-category="lanthanoid">
        <h3 class="name">Ytterbium</h3>
        <p class="symbol">Yb</p>
        <p class="number">70</p>
        <p class="weight">173.054</p>
    </div>
    <div class="element-item noble-gas nonmetal " data-category="noble-gas">
        <h3 class="name">Argon</h3>
        <p class="symbol">Ar</p>
        <p class="number">18</p>
        <p class="weight">39.948</p>
    </div>
    <div class="element-item diatomic nonmetal " data-category="diatomic">
        <h3 class="name">Nitrogen</h3>
        <p class="symbol">N</p>
        <p class="number">7</p>
        <p class="weight">14.007</p>
    </div>
    <div class="element-item actinoid metal inner-transition " data-category="actinoid">
        <h3 class="name">Uranium</h3>
        <p class="symbol">U</p>
        <p class="number">92</p>
        <p class="weight">238.029</p>
    </div>
    <div class="element-item actinoid metal inner-transition " data-category="actinoid">
        <h3 class="name">Plutonium</h3>
        <p class="symbol">Pu</p>
        <p class="number">94</p>
        <p class="weight">(244)</p>
    </div>
</div>


</body>
<script>
    // external js: isotope.pkgd.js


    // init Isotope
    var $grid = $('.grid').isotope({
        itemSelector: '.element-item',
        layoutMode: 'fitRows',
        getSortData: {
            name: '.name',
            symbol: '.symbol',
            number: '.number parseInt',
            category: '[data-category]',
            weight: function( itemElem ) {
                var weight = $( itemElem ).find('.weight').text();
                return parseFloat( weight.replace( /[\(\)]/g, '') );
            }
        }
    });

    // filter functions
    var filterFns = {
        // show if number is greater than 50
        numberGreaterThan50: function() {
            var number = $(this).find('.number').text();
            return parseInt( number, 10 ) > 50;
        },
        // show if name ends with -ium
        ium: function() {
            var name = $(this).find('.name').text();
            return name.match( /ium$/ );
        }
    };

    // bind filter button click
    $('#filters').on( 'click', 'button', function() {
        var filterValue = $( this ).attr('data-filter');
        // use filterFn if matches value
        filterValue = filterFns[ filterValue ] || filterValue;
        $grid.isotope({ filter: filterValue });
    });

    // bind sort button click
    $('#sorts').on( 'click', 'button', function() {
        var sortByValue = $(this).attr('data-sort-by');
        $grid.isotope({ sortBy: sortByValue });
    });

    // change is-checked class on buttons
    $('.button-group').each( function( i, buttonGroup ) {
        var $buttonGroup = $( buttonGroup );
        $buttonGroup.on( 'click', 'button', function() {
            $buttonGroup.find('.is-checked').removeClass('is-checked');
            $( this ).addClass('is-checked');
        });
    });
</script>
</html>